<template>
   <!-- 商品分类导航 -->
        <div class="type-nav">
            <div class="container" @mouseleave="showleave">
                <h2 class="all" @mouseenter="showlist">全部商品分类</h2>

                <nav class="nav">
                    <a href="###">服装城</a>
                    <a href="###">美妆馆</a>
                    <a href="###">尚品汇超市</a>
                    <a href="###">全球购</a>
                    <a href="###">闪购</a>
                    <a href="###">团购</a>
                    <a href="###">有趣</a>
                    <a href="###">秒杀</a>
                </nav>
                     <transition>
 <div class="sort" v-show="show">
                    <div class="all-sort-list2">
                        <div class="item" v-for="(category1Id,index) in typenave" :key="category1Id.categoryId">
                            <h3  @mouseenter="hoverlist(index)" :class="{cur:curindex == index}">
                                <a @click="c1push(category1Id.categoryId,category1Id.categoryName)" >{{category1Id.categoryName}}</a>
                            </h3>
                            <div class="item-list clearfix" >
                                <div class="subitem" v-for="category2Id in category1Id.categoryChild" :key="category2Id.categoryId" >
                                    <dl class="fore" >
                                        <dt>
                                            <a @click="c2push(category2Id.categoryId,category2Id.categoryName)">{{category2Id.categoryName}}</a>
                                        </dt>
                                        <dd>
                                            <em v-for="category3Id in category2Id.categoryChild" :key="category3Id.categoryId">
                                                <a @click="c3push(category3Id.categoryId,category3Id.categoryName)">{{category3Id.categoryName}}</a>
                                            </em>
                                      
                                        </dd>
                                    </dl>
                                </div>
                            </div>
                        </div>

                    </div>
                </div>
                     </transition>
                
            </div>
        </div>
      
</template>

<script>
import { mapState } from 'vuex';
import throttle from 'lodash/throttle'
export default {
 name:'TypeNav',
 data() {
    return {
        curindex:-1,
        show:true,
    }
 },
 computed:{
  ...mapState({
    typenave:(store)=>{
        return store.Home.typenave
  }})
 },

methods:{
 
  hoverlist:throttle(function(index){
   this.curindex = index
          
  }),
  c1push(id,name){
    this.$router.push({path:'/search',query:{category1Id:id,categoryName:name}})
   
  },
  c2push(id,name){
    this.$router.push({path:'/search',query:{category2Id:id,categoryName:name}})

  },
  c3push(id,name){
    this.$router.push({path:'/search',query:{category3Id:id,categoryName:name}})
  },
  showlist(){
    if (this.$route.path != '/home') {
        this.show=true         
    }
  },
  showleave(){
      if (this.$route.path != '/home') {
        this.show=false         
    }
  }




},
  mounted() {
  if (this.$route.path != '/home') {
     this.show = false
  }
},
}
</script>

<style lang="less" scoped>
  .type-nav {
        border-bottom: 2px solid #e1251b;

        .container {
            width: 1200px;
            margin: 0 auto;
            display: flex;
            position: relative;

            .all {
                width: 210px;
                height: 45px;
                background-color: #e1251b;
                line-height: 45px;
                text-align: center;
                color: #fff;
                font-size: 14px;
                font-weight: bold;
            }

            .nav {
                a {
                    height: 45px;
                    margin: 0 22px;
                    line-height: 45px;
                    font-size: 16px;
                    color: #333;
                }
            }

            .sort {
                position: absolute;
                left: 0;
                top: 45px;
                width: 210px;
                height: 461px;
                position: absolute;
                background: #fafafa;
                z-index: 999;

                .all-sort-list2 {
                    .item {
                        h3 {
                            line-height: 30px;
                            font-size: 14px;
                            font-weight: 400;
                            overflow: hidden;
                            padding: 0 20px;
                            margin: 0;

                            a {
                                color: #333;
                            }
                        }

                        .item-list {
                            display: none;
                            position: absolute;
                            width: 734px;
                            min-height: 460px;
                            background: #f7f7f7;
                            left: 210px;
                            border: 1px solid #ddd;
                            top: 0;
                            z-index: 9999 !important;

                            .subitem {
                                float: left;
                                width: 650px;
                                padding: 0 4px 0 8px;

                                dl {
                                    border-top: 1px solid #eee;
                                    padding: 6px 0;
                                    overflow: hidden;
                                    zoom: 1;

                                    &.fore {
                                        border-top: 0;
                                    }

                                    dt {
                                        float: left;
                                        width: 54px;
                                        line-height: 22px;
                                        text-align: right;
                                        padding: 3px 6px 0 0;
                                        font-weight: 700;
                                    }

                                    dd {
                                        float: left;
                                        width: 415px;
                                        padding: 3px 0 0;
                                        overflow: hidden;

                                        em {
                                            float: left;
                                            height: 14px;
                                            line-height: 14px;
                                            padding: 0 8px;
                                            margin-top: 5px;
                                            border-left: 1px solid #ccc;
                                        }
                                    }
                                }
                            }
                        }

                        &:hover {
                            .item-list {
                                display: block;
                            }
                        }
                        .cur{
                            background-color: rgb(169, 169, 217);
                        }
                    }

                }
            }
            .v-enter{
                height: 0px;
            }
            .v-enter-to{
                height: 461px;
            }
            .v-enter-active{
                transition: all .4s linear;
            }
             .v-leave{
                height: 461px;
            }
            .v-leave-to{
                height: 0px;
            }
            .v-leave-active{
                transition: all .3s linear;
            }
        }
    }
</style>